在 nib 中加载 IKImageBrowserViews 时，10.5 上偶尔会崩溃

Question

我的应用程序遇到了一个奇怪的崩溃问题，该问题仅发生在 10.5 上。它不会一直发生，但它会在启动时发生，似乎是在笔尖加载时发生。 （BWTransparentScrollView出现在崩溃报告中，但崩溃发生在initWithCoder:中，如果我从项目中删除BWToolkit，我仍然可以触发崩溃。）

事实上，我的笔尖中的两个IKImageBrowserView对象似乎有问题。如果我从笔尖中删除它们，崩溃似乎永远不会发生（尽管我的 UI 很混乱，因为这两个视图对于界面来说是必不可少的）。

Interface Builder 不会通知我 IKImageBrowserViews 的任何问题。

以下是此问题的典型崩溃报告：

    Exception Type:  EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Crashed Thread:  0

Application Specific Information:
objc[22521]: garbage collection is ON
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[NSCFString objectForKey:]: unrecognized selector sent to instance 0x7fff704d15d0'

Thread 0 Crashed:
0   libSystem.B.dylib               0x00007fff81da5f16 __kill + 10
1   libstdc++.6.dylib               0x00007fff80b82085 dyld_stub__Unwind_DeleteException + 0
2   libobjc.A.dylib                 0x00007fff80a4cadf _objc_terminate + 102
3   libstdc++.6.dylib               0x00007fff80b80425 __gxx_personality_v0 + 1259
4   libstdc++.6.dylib               0x00007fff80b8045b std::terminate() + 19
5   libstdc++.6.dylib               0x00007fff80b8054c __cxa_rethrow + 0
6   libobjc.A.dylib                 0x00007fff80a4c966 objc_exception_rethrow + 0
7   com.apple.CoreFoundation        0x00007fff8218645b -[NSObject doesNotRecognizeSelector:] + 171
8   com.apple.CoreFoundation        0x00007fff82184ae4 ___forwarding___ + 756
9   com.apple.CoreFoundation        0x00007fff82184c38 _CF_forwarding_prep_0 + 232
10  com.apple.CoreText              0x00007fff839f0f43 TDescriptor::CreateMatchingDescriptorInternal(__CFSet const*) const + 237
11  com.apple.CoreText              0x00007fff839f0dd0 TDescriptor::InitBaseFont() + 30
12  com.apple.CoreText              0x00007fff839f0d59 TDescriptor::CreateMatchingDescriptor(__CFSet const*) const + 47
13  com.apple.AppKit                0x00007fff842df2d3 __NSFontFactoryWithName + 412
14  com.apple.AppKit                0x00007fff842df075 +[NSFont fontWithName:size:] + 51
15  com.apple.imageKit              0x00000001000d246b -[IKImageBrowserView _setDefaultTextAttributes] + 288
16  com.apple.imageKit              0x00000001000d2936 -[IKImageBrowserView setAppearanceStyle:] + 42
17  com.apple.imageKit              0x00000001000d0a88 -[IKImageBrowserView _ikCommonInit] + 2122
18  com.apple.imageKit              0x00000001000d1470 -[IKImageBrowserView initWithCoder:] + 76
19  com.apple.AppKit                0x00007fff8423f750 -[NSClassSwapper initWithCoder:] + 483
20  com.apple.Foundation            0x00007fff80bc631e _decodeObjectBinary + 1214
21  com.apple.Foundation            0x00007fff80bc7b33 -[NSKeyedUnarchiver _decodeArrayOfObjectsForKey:] + 1363
22  com.apple.Foundation            0x00007fff80bc7f91 -[NSArray(NSArray) initWithCoder:] + 385
23  com.apple.Foundation            0x00007fff80bc631e _decodeObjectBinary + 1214
24  com.apple.Foundation            0x00007fff80bc5de4 _decodeObject + 244
25  com.apple.AppKit                0x00007fff841fe77a -[NSView initWithCoder:] + 367
26  com.apple.AppKit                0x00007fff842406a0 -[NSClipView initWithCoder:] + 55
27  com.apple.Foundation            0x00007fff80bc631e _decodeObjectBinary + 1214
28  com.apple.Foundation            0x00007fff80bc7b33 -[NSKeyedUnarchiver _decodeArrayOfObjectsForKey:] + 1363
29  com.apple.Foundation            0x00007fff80bc7f91 -[NSArray(NSArray) initWithCoder:] + 385
30  com.apple.Foundation            0x00007fff80bc631e _decodeObjectBinary + 1214
31  com.apple.Foundation            0x00007fff80bc5de4 _decodeObject + 244
32  com.apple.AppKit                0x00007fff841fe77a -[NSView initWithCoder:] + 367
33  com.apple.AppKit                0x00007fff84240edd -[NSScrollView initWithCoder:] + 127
34  ...onwalkin.BWToolkitFramework  0x00000001003bcb7d -[BWTransparentScrollView initWithCoder:] + 41
35  com.apple.AppKit                0x00007fff8423f750 -[NSClassSwapper initWithCoder:] + 483
36  com.apple.Foundation            0x00007fff80bc631e _decodeObjectBinary + 1214
37  com.apple.Foundation            0x00007fff80bc7b33 -[NSKeyedUnarchiver _decodeArrayOfObjectsForKey:] + 1363
38  com.apple.Foundation            0x00007fff80bc7f91 -[NSArray(NSArray) initWithCoder:] + 385
39  com.apple.Foundation            0x00007fff80bc631e _decodeObjectBinary + 1214
40  com.apple.Foundation            0x00007fff80bc5de4 _decodeObject + 244
41  com.apple.AppKit                0x00007fff841fe77a -[NSView initWithCoder:] + 367
42  com.apple.AppKit                0x00007fff841ffc92 -[NSCustomView initWithCoder:] + 651
43  com.apple.Foundation            0x00007fff80bc631e _decodeObjectBinary + 1214
44  com.apple.Foundation            0x00007fff80bc5de4 _decodeObject + 244
45  com.apple.AppKit                0x00007fff841f8928 -[NSNibConnector initWithCoder:] + 409
46  com.apple.AppKit                0x00007fff841fd404 -[NSNibOutletConnector initWithCoder:] + 350
47  com.apple.Foundation            0x00007fff80bc631e _decodeObjectBinary + 1214
48  com.apple.Foundation            0x00007fff80bc7b33 -[NSKeyedUnarchiver _decodeArrayOfObjectsForKey:] + 1363
49  com.apple.Foundation            0x00007fff80bc7f91 -[NSArray(NSArray) initWithCoder:] + 385
50  com.apple.Foundation            0x00007fff80bc631e _decodeObjectBinary + 1214
51  com.apple.Foundation            0x00007fff80bc5de4 _decodeObject + 244
52  com.apple.AppKit                0x00007fff841f784c -[NSIBObjectData initWithCoder:] + 2014
53  com.apple.Foundation            0x00007fff80bc631e _decodeObjectBinary + 1214
54  com.apple.Foundation            0x00007fff80bc5de4 _decodeObject + 244
55  com.apple.AppKit                0x00007fff841f6f55 loadNib + 156
56  com.apple.AppKit                0x00007fff841f698d +[NSBundle(NSNibLoading) _loadNibFile:nameTable:withZone:ownerBundle:] + 836
57  com.apple.AppKit                0x00007fff841f6568 +[NSBundle(NSNibLoading) loadNibNamed:owner:] + 355
58  com.apple.AppKit                0x00007fff841f6299 NSApplicationMain + 286
59  ...ittleappfactory.Tagalicious  0x00000001000015cc start + 52

Thread 1:
0   libauto.dylib                   0x00007fff83fcfaae Auto::MemoryScanner::scan_range(Auto::Range const&, Auto::WriteBarrier*) + 366
1   libauto.dylib                   0x00007fff83fbe3df Auto::WriteBarrier::scan_ranges(void*, unsigned long, Auto::MemoryScanner&) + 607
2   libauto.dylib                   0x00007fff83fd10c7 bool Auto::visitAllocatedBlocks<Auto::scan_retained_and_old_blocks_visitor>(Auto::Zone*, Auto::scan_retained_and_old_blocks_visitor&) + 343
3   libauto.dylib                   0x00007fff83fd080d Auto::MemoryScanner::scan_retained_and_old_blocks() + 29
4   libauto.dylib                   0x00007fff83fc95d7 Auto::Collector::check_roots() + 23
5   libauto.dylib                   0x00007fff83fd0b0d Auto::MemoryScanner::scan() + 45
6   libauto.dylib                   0x00007fff83fc0a40 Auto::Zone::collect(bool, void*, unsigned long long*) + 496
7   libauto.dylib                   0x00007fff83fae8fd auto_collect_internal(Auto::Zone*, unsigned int) + 381
8   libauto.dylib                   0x00007fff83faf3b0 auto_collection_thread(void*) + 112
9   libSystem.B.dylib               0x00007fff81d6ce8f _pthread_start + 316
10  libSystem.B.dylib               0x00007fff81d6cd51 thread_start + 13

Thread 2:
0   libSystem.B.dylib               0x00007fff81d45da2 __semwait_signal + 10
1   libGLProgrammability.dylib      0x00007fff826d057b glvmDoWork + 155
2   libSystem.B.dylib               0x00007fff81d6ce8f _pthread_start + 316
3   libSystem.B.dylib               0x00007fff81d6cd51 thread_start + 13

Thread 0 crashed with X86 Thread State (64-bit):
  rax: 0x0000000000000000  rbx: 0x00007fff702717d8  rcx: 0x00007fff5fbfb628  rdx: 0x0000000000000000
  rdi: 0x00000000000057f9  rsi: 0x0000000000000006  rbp: 0x00007fff5fbfb640  rsp: 0x00007fff5fbfb628
   r8: 0x00007fff5fbfb1b0   r9: 0x0000000000000000  r10: 0x00007fff81d7de36  r11: 0x0000000000000206
  r12: 0x00007fff821aea28  r13: 0x0000000000000000  r14: 0x00007fff80a56d00  r15: 0x00007fff7032d0a0
  rip: 0x00007fff81da5f16  rfl: 0x0000000000000206  cr2: 0x00007fff70093028

知道会发生什么吗？

Answer 1

啊。我尝试了很多方法来尝试解决这个问题。我尝试从头开始重新创建新的 IKImageBrowserViews（以防 xib 文件本身因某种原因损坏）。我尝试确保我的自定义 IKImageBrowserView 类（我在 Interface Builder 中设置了它们的类）不会导致问题。

最后，我从 xib 中删除了 IKImageBrowserViews 并以编程方式创建了它们。 10.5 上的崩溃消失了。这并不是太难，但它似乎是解决启动崩溃的唯一解决方案。